3493709 has 4 divisors (see below), whose sum is σ = 3497820. Its totient is φ = 3489600.

The previous prime is 3493703. The next prime is 3493727. The reversal of 3493709 is 9073943.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9073943 = 509 ⋅17827.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 2316484 = 1085^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 3493709 - 2¹² = 3489613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3493703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (874455).

Almost surely, 2^3493709 is an apocalyptic number.

It is an amenable number.

3493709 is a deficient number, since it is larger than the sum of its proper divisors (4111).

3493709 is a wasteful number, since it uses less digits than its factorization.

3493709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 3493709 is about 1869.1465967120. The cubic root of 3493709 is about 151.7384265071.

The spelling of 3493709 in words is "three million, four hundred ninety-three thousand, seven hundred nine".